Cilazapril is indicated in the treatment of mild to moderate essential hypertension. Cilazapril may be used alone or in combination with thiazide-type diuretics (Inhibace plus). Cilazapril should normally be used in those patients in whom treatment with a diuretic or a beta-blocker was found ineffective or has been associated with unacceptable adverse effects. Cilazapril can also be tried as an initial agent in those patients in whom use of diuretics and/or beta-blockers is contraindicated.

Cilazapril is also indicated in the treatment of congestive heart failure as an adjunctive therapy with digitalis and/or diuretics.

Angioedema : Angioedema has been reported in patients treated with angiotensin-converting enzyme inhibitors including Cilazapril. Angioedema has been associated with ACE inhibitors, with a reported incidence of 0.1-0.5%. Angioedema due to ACE inhibitors can present as recurrent episodes of facial swelling, which resolve on withdrawal, or as acute oropharyngeal edema and potentially life-threatening airway obstruction, which requires emergency treatment. Angioedema associated with laryngeal edema and/or shock may be fatal. If angioedema occurs, Cilazapril should be promptly discontinued and appropriate therapy instituted without delay.
A variant form is angioedema of the intestine, which tends to occur within the first 24-48 hours of treatment.
Patients with a history of angioedema unrelated to ACE inhibitor therapy may be at an increased risk of angioedema while receiving an ACE inhibitor.

Cilazapril is contraindicated during pregnancy . When used in pregnancy, ACE inhibitors can cause injury or even death of the developing fetus. Pregnant women should be informed of the potential hazards to the fetus and must not take Cilazapril during pregnancy.
Patients planning pregnancy should be changed to alternative antihypertensive treatments which have an established safety profile for use in pregnancy. When pregnancy is detected, Cilazapril should be discontinued as soon as possible and, if appropriate, alternative therapy should be started.